① Home communication terminal area: to meet the ONU and other home terminal equipment installation space requirements.
② Fiber optic terminal area: to meet the fiber optic splicing (cold or fusion splicing) area.
③ Equipment Expansion Area: to meet the space for installation of various information panels and expansion modules (equipment).
④ Other accessories: in the chassis door against the upper part of the appropriate position configured with a hangtag (to facilitate the use of units to identify the chassis number), power sockets and other accessories.